CN101648790A - Manufacturing method of gangue heat-preserving dry-mixed mortar - Google Patents

Manufacturing method of gangue heat-preserving dry-mixed mortar Download PDF

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Publication number
CN101648790A
CN101648790A CN200910067412A CN200910067412A CN101648790A CN 101648790 A CN101648790 A CN 101648790A CN 200910067412 A CN200910067412 A CN 200910067412A CN 200910067412 A CN200910067412 A CN 200910067412A CN 101648790 A CN101648790 A CN 101648790A
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CN
China
Prior art keywords
mortar
preserving
heat
cement
gangues
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN200910067412A
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Chinese (zh)
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CN101648790B (en
Inventor
雒峰
李冠杰
张春植
刘润华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGCHUN GOLDEN CENTURY MINING INDUSTRY TECHNOLOGY DEVELOPMENT Co Ltd
Original Assignee
CHANGCHUN GOLDEN CENTURY MINING INDUSTRY TECHNOLOGY DEVELOPMENT Co Ltd
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Application filed by CHANGCHUN GOLDEN CENTURY MINING INDUSTRY TECHNOLOGY DEVELOPMENT Co Ltd filed Critical CHANGCHUN GOLDEN CENTURY MINING INDUSTRY TECHNOLOGY DEVELOPMENT Co Ltd
Priority to CN200910067412A priority Critical patent/CN101648790B/en
Publication of CN101648790A publication Critical patent/CN101648790A/en
Application granted granted Critical
Publication of CN101648790B publication Critical patent/CN101648790B/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
    • C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/2038—Resistance against physical degradation
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/20—Resistance against chemical, physical or biological attack
    • C04B2111/28—Fire resistance, i.e. materials resistant to accidental fires or high temperatures
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2111/00—Mortars, concrete or artificial stone or mixtures to prepare them, characterised by specific function, property or use
    • C04B2111/34—Non-shrinking or non-cracking materials
    • C04B2111/343—Crack resistant materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/91—Use of waste materials as fillers for mortars or concrete

Abstract

The invention provides gangue heat-preserving dry-mixed mortar prepared from raw materials, i.e. cement, gangues, closed-cell perlite, subdivisible loose emulsion powder, methylcellulose ether and a mortar modifier. In the invention, gangues which have good grain composition are added into the mortar so as to achieve the good effect of micro-aggregation, thereby solving the problems that an interface positioned between set cement and lightweight aggregate is very frail after the traditional heat-preserving mortar is hydrated and a cold bridge is easy to generate between cement paste and the lightweight aggregate when the interface is damaged. The invention enhances the bonding strength and the durability of the mortar and has the advantages of heat-preserving property, ageing resistance, weather resistance, fire resistance, no bulging and cracking, high strength, good bonding property and construction, and the like. The gangue mortar which has good property and is prepared from industrial waste gangues not only solves the environmental problem and the resource waste problem which are brought by the gangues, but also prepares the heat-preserving mortar with excellent property for building. The invention has very high social benefits and economic benefits.

Description

Gangue heat-preserving dry-mixed mortar and manufacture method
Technical field
The invention provides a kind of gangue heat-preserving dry-mixed mortar, the manufacture method of this mortar also is provided simultaneously, utilize mine tailing formulated, belong to material of construction and waste resource reutilization technology field.
Background technology
Along with banning and the raising of building energy-saving standard of common brick, the consumption of various insulation blocks is increasing.The problem of Chu Xianing is also more and more thereupon, mainly just is to use ordinary mortar to come the building heat insulation building block.Because the apparent density of ordinary mortar is generally 1600～1800kg/m 3, thermal conductivity is 0.8～1.0W/ (mK), and the apparent density of light heat insulation blocks is generally 450～950kg/m 3, thermal conductivity is 0.15W～0.35W/ (mK), because both thermal conductivity gaps are bigger, causes whole masonry to have " cold bridge " phenomenon, reaches about 25% by building the power loss that mortar joint causes by laying bricks or stones, is building mortar joint by laying bricks or stones even dewfall appears in whole metope.Moreover the coefficient of shrinkage between the two differs also a lot, and whole masonry is affected the intensity of masonry in the drying and watering cycle process, and ordinary mortar and light block bonding are undesirable.Thermal insulation mortar can overcome above-mentioned shortcoming.
The used light-weight aggregate of modal in the market thermal insulation mortar is EPS particle or common perforate perlite.Because EPS is organic inflammable material, with the thermal insulation mortar fire resistance extreme difference of this kind material preparation; And perforate perlite water-absorbent is big, easily efflorescence, and volumetric shrinkage is big in the slurry whipping process, and is difficult for stirring, and causes phenomenons such as the low and hollowing cracking of product later strength.
Mine tailing is the solid waste that bargh is dumped in extractive metallurgy main raw material process, generally stores up in mine tailing storehouse (dam).By the end of the end of the year 2000, the mine tailing amount that national metal mine accumulative total is stored surpasses 7,000,000,000 tons, takes up an area of more than 50,000 hectare.The bulk deposition of mine tailing is contaminate environment not only, and takies valuable cultivated land resource.The comprehensive utilization of mine tailing has become a great problem.
Summary of the invention
The present invention discloses a kind of gangue heat-preserving dry-mixed mortar and manufacture method thereof, occurs " cold bridge " phenomenon when having solved the ordinary mortar building block easily.
Gangue heat-preserving dry-mixed mortar provided by the invention, form by the raw material of following column weight amount umber ratio:
1 part of cement, mine tailing 0.2-5 part, closed perlite 0.05-0.3 part,
Redispersable latex powder 0.03-0.15 part, methyl cellulose ether 0.003-0.015 part,
Modifying mortar agent 0.003-0.05 part;
Described mine tailing is a remaining solid waste behind the extraction valuable element, and essential mineral consists of silicate, aluminosilicate, carbonate minerals and trace element, and chemical ingredients is with SiO 2, Al 2O 3, CaO, MgO, Fe 2O 3, K 2O, Na 2O is main, wherein, and two kinds of essential mineral component content scope: SiO 2Content is 25%-80%, Al 2O 3Content is 10%-50%.
The modifying mortar agent is to be mixed in proportion to stir by the following component with water reducing ability, bleed, flame retardant resistance to make: 5 ~ 15 parts of Sodium dodecylbenzene sulfonatees, 8 ~ 16 parts of trimeric cyanamides, 5 ~ 20 parts in hard acid fat.
The preparation method of gangue heat-preserving mortar of the present invention is as follows:
(1) preparation of A component takes by weighing 1 part of cement redispersable latex powder 0.03-0.15 part methyl cellulose ether 0.003-0.015 part and stirs in stirrer then.
(2) preparation of B component takes by weighing 0.2-5 part mine tailing closed perlite 0.05-0.3 and stirs in stirrer, till evenly.
Two components that (3) will make pack respectively and store in order to using, can be when the user uses according to different engineering actual demands (as wipe one's face or build by laying bricks or stones), A, B carried out proportioning according to service requirements and mix the back being undertaken promptly obtaining gangue heat-preserving mortar of the present invention behind the mix by the water of 0.3-3 times of quality of A and B total mass.
Gangue heat-preserving mortar of the present invention can be by adjusting proportioning raw materials, to satisfy different construction requirements, is used for non-bearing and the load-bearing heat-insulating wall block usefulness of building by laying bricks or stones and wipe one's face.
The present invention compares with existing mortar has following positively effect: utilize mine tailing that good grain composition is arranged, mine tailing is joined the effect that can play " micro-aggregate " in the mortar well, solved after traditional thermal insulation mortar aquation the interface between its light skeletal and cement stone extremely thin a little less than, be easy to during destruction between grout and light skeletal, take place?Because a material fineness of mine tailing is between the 80-200 order, a material of cement is about 320 orders, in the space that produces when the inert mine tailing can be filled aquation after the aquation, and has suppressed oarse-grained Ca (OH) 2Crystalline generates, and has improved the cohesive strength and the weather resistance of mortar; The adding of modifying mortar agent can make mortar still can reach good workability under the situation that water consumption reduces, and this mortar can produce non-combustible gas when the buildings presence of fire, so have good flame-retardant effect.The present invention as light skeletal, has remedied that the granular polystyrene organic materials is inflammable, fire resistance is poor, workability is poor with closed perlite, defectives such as bounce-back property is big in the construction.Self have heat retaining property, anti-aging, weathering resistance, fire line, do not open rouse, do not ftracture, intensity height, adhesive property be good, characteristics such as application property is good.Prepare well behaved tailings mortar with industrial depleted mine tailing, both solved environmental problem and wasting of resources problem that mine tailing brings, made the thermal insulation mortar of excellent performance for building again, this invention has very big social benefit and economic benefit.
Embodiment
Embodiment 1
1, takes by weighing composition silicate 100Kg cement, redispersable latex powder 3Kg, the methyl cellulose ether 0.3Kg that strength grade is 32.5MPa, carry out siccative and stir, it is mixed, make the A component.
2, take by weighing mine tailing 50Kg, closed perlite 8Kg, modifying mortar agent 0.3Kg (mixing stirring by Sodium dodecylbenzene sulfonate 0.08Kg, trimeric cyanamide 0.13Kg, hard acid fat 0.09Kg all makes) again, add in the stirrer and stir, make the B component.
3, take by weighing A component 100Kg, B component 100Kg carries out two components then and stirs, add 100Kg water can make gangue heat-preserving mortar of the present invention.
After testing: its finished product dry density is 390kg/m 3, ultimate compression strength is 2.5MPa, thermal conductivity 0.06W/ (mK), and linear shrinkage ratio 0.24% is pressed and is cut cohesive strength 56Kpa, and combustionproperty meets the A level requirement of GB8624-2006 " material of construction and the classification of goods combustionproperty " regulation.
Embodiment 2
1, takes by weighing normal silicate 100Kg cement, redispersable latex powder 3Kg, the methyl cellulose ether 0.3Kg that strength grade is 42.5MPa, carry out siccative and stir, it is mixed, make the A component.
2, take by weighing mine tailing 50Kg closed perlite 10Kg again, modifying mortar agent 0.3Kg (being made by Sodium dodecylbenzene sulfonate 0.1Kg, trimeric cyanamide 0.08Kg, hard acid fat 0.12Kg mixing and stirring) adds in the stirrer and stirs, and makes the B component.
3, take by weighing A component 100Kg, B component 150Kg carries out two components then and stirs, add 130Kg water can make gangue heat-preserving mortar of the present invention.
After testing: its finished product dry density is 350kg/m 3, ultimate compression strength is 1.8MPa, thermal conductivity 0.052W/ (mK), and linear shrinkage ratio 0.25% is pressed and is cut cohesive strength 54Kpa, and combustionproperty meets the A level requirement of GB8624-2006 " material of construction and the classification of goods combustionproperty " regulation.
Embodiment 3
1, takes by weighing slag cement 100Kg, redispersable latex powder 3Kg, the methyl cellulose ether 0.3Kg that strength grade is 32.5MPa, carry out siccative and stir, it is mixed, make the A component.
2, take by weighing mine tailing 50Kg, closed perlite 15Kg again, modifying mortar agent 0.3Kg (being made by Sodium dodecylbenzene sulfonate 0.05Kg, trimeric cyanamide 0.15Kg, hard acid fat 0.1Kg mixing and stirring) adds in the stirrer and stirs, and makes the B component.
3, take by weighing A component 100Kg, B component 200Kg carries out two components then and stirs, add 180Kg water can make gangue heat-preserving mortar of the present invention.
After testing: its finished product dry density is 290kg/m 3, ultimate compression strength is 1.4MPa, thermal conductivity 0.046W/ (mK), and linear shrinkage ratio 0.2% is pressed and is cut cohesive strength 50Kpa, and combustionproperty meets the requirement of GB8624-2006 " material of construction and the classification of goods combustionproperty " regulation A level.
Subordinate list: thermal insulation mortar of the present invention and market common mortar salient features data contrast
Product performance Dry density (kg/m 3) Ultimate compression strength (MPa) Thermal conductivity W/ (mK)
Mortar that sell in market ??400-600 ??1.5-2.2 ??0.062-0.076
Mortar of the present invention ??200-400 ??1.4-2.5 ??0.046-0.06
As can be seen from the above table, the dry density of mortar that sell in market is bigger, and thermal conductivity is bigger.Thermal insulation mortar of the present invention is sold less than market in dry density still can reach high compression strength and lower thermal conductivity under the situation of mortar dry density.

Claims (2)

1, a kind of gangue heat-preserving dry-mixed mortar, form by the raw material of following column weight amount umber ratio:
1 part of cement, 80-200 order mine tailing 0.2-5 part, closed perlite 0.05-0.3 part,
Redispersable latex powder 0.03-0.15 part, methyl cellulose ether 0.003-0.015 part,
Modifying mortar agent 0.003-0.05 part;
Described mine tailing is a remaining solid waste behind the extraction valuable element, and essential mineral consists of silicate, aluminosilicate, carbonate minerals and trace element, and chemical ingredients is with SiO 2, Al 2O 3, CaO, MgO, Fe 2O 3, K 2O, Na 2O is main, wherein, and SiO 2Content is 25%-80%, Al 2O 3Content is 10%-50%;
The modifying mortar agent is mixed in proportion by following component and makes: Sodium dodecylbenzene sulfonate 5-15 part, trimeric cyanamide 8-16 part, hard acid fat 5-20 part.
2, the preparation method of the described gangue heat-preserving mortar of claim 1 is as follows:
(1) preparation of A component: take by weighing 1 part of cement, redispersable latex powder 0.03-0.15 part, methyl cellulose ether 0.003-0.015 part, mixing and stirring;
(2) preparation of B component: take by weighing 0.2-5 part 80-200 order mine tailing, closed perlite 0.05-0.3 part, modifying mortar agent 0.003-0.05 part mixing and stirring;
(3) A, B two components are carried out proportioning according to service requirements and mix, undertaken promptly getting mortar behind the mix by the water of 0.3-3 times of quality of A, B total mass.
CN200910067412A 2009-08-19 2009-08-19 Gangue heat-preserving dry-mixed mortar and manufacturing method Expired - Fee Related CN101648790B (en)

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Application Number Priority Date Filing Date Title
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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102276206A (en) * 2011-06-28 2011-12-14 中国二十二冶集团有限公司 Method for preparing concrete by using chippings from iron to replace natural sand
CN103102127A (en) * 2013-01-29 2013-05-15 绍兴益生砂浆有限公司 Interface mortar for autoclaved aerated concrete
CN104355583A (en) * 2014-10-13 2015-02-18 合肥庭索环保材料有限公司 Building mortar doped with urban inorganic refuse
CN105236893A (en) * 2015-09-30 2016-01-13 湖北理工学院 Iron tailing doped superlight perlite insulation board and preparation method thereof
CN107060246A (en) * 2017-05-22 2017-08-18 瞿浩荣 Mine tailing base decorating board and mine tailing base heat insulation decoration integrated plate and its manufacture method
CN109400047A (en) * 2017-08-18 2019-03-01 武汉质高环保科技有限公司 A kind of masonry mortar and preparation method thereof
CN115259792A (en) * 2022-07-29 2022-11-01 佛山市东鹏陶瓷发展有限公司 Thermal insulation material with decorative performance and preparation method thereof
CN117602909A (en) * 2024-01-22 2024-02-27 湖南瑞砂环境科技有限公司 Floor heating special cement mortar based on tungsten tailings and preparation method thereof

Families Citing this family (1)

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CN103102114A (en) * 2013-01-29 2013-05-15 绍兴益生砂浆有限公司 Ceramic tile adhesive mortar

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CN101492272A (en) * 2008-01-22 2009-07-29 北京华创瑞能建材科技有限公司 Self-thermal insulation material and insulation brick

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102276206A (en) * 2011-06-28 2011-12-14 中国二十二冶集团有限公司 Method for preparing concrete by using chippings from iron to replace natural sand
CN102276206B (en) * 2011-06-28 2012-09-12 中国二十二冶集团有限公司 Method for preparing concrete by using chippings from iron to replace natural sand
CN103102127A (en) * 2013-01-29 2013-05-15 绍兴益生砂浆有限公司 Interface mortar for autoclaved aerated concrete
CN104355583A (en) * 2014-10-13 2015-02-18 合肥庭索环保材料有限公司 Building mortar doped with urban inorganic refuse
CN104355583B (en) * 2014-10-13 2016-01-27 合肥庭索环保材料有限公司 A kind of building mortar of urban inorganic garbage of adulterating
CN105236893A (en) * 2015-09-30 2016-01-13 湖北理工学院 Iron tailing doped superlight perlite insulation board and preparation method thereof
CN105236893B (en) * 2015-09-30 2017-10-31 湖北理工学院 One kind mixes ultralight pearlite heat-insulation plate of iron tailings and preparation method thereof
CN107060246A (en) * 2017-05-22 2017-08-18 瞿浩荣 Mine tailing base decorating board and mine tailing base heat insulation decoration integrated plate and its manufacture method
CN109400047A (en) * 2017-08-18 2019-03-01 武汉质高环保科技有限公司 A kind of masonry mortar and preparation method thereof
CN109400047B (en) * 2017-08-18 2021-08-17 武汉质高环保科技有限公司 Masonry mortar and preparation method thereof
CN115259792A (en) * 2022-07-29 2022-11-01 佛山市东鹏陶瓷发展有限公司 Thermal insulation material with decorative performance and preparation method thereof
CN117602909A (en) * 2024-01-22 2024-02-27 湖南瑞砂环境科技有限公司 Floor heating special cement mortar based on tungsten tailings and preparation method thereof

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